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One-Year Limited Warranty

This Orion product is warranted against defects in materials or workmanship for a period of one year from 
the date of purchase. This warranty is for the benefit of the original retail purchaser only. During this war-
ranty period Orion Telescopes & Binoculars will repair or replace, at Orion’s option, any warranted instru-
ment that proves to be defective, provided it is returned postage paid. Proof of purchase (such as a copy 
of the original receipt) is required. This warranty is only valid in the country of purchase.
This warranty does not apply if, in Orion’s judgment, the instrument has been abused, mishandled, or 
modified, nor does it apply to normal wear and tear. This warranty gives you specific legal rights. It is not 
intended to remove or restrict your other legal rights under applicable local consumer law; your state or 
national statutory consumer rights governing the sale of consumer goods remain fully applicable. 
For further warranty information, please visit www.OrionTelescopes.com/warranty.

Corporate Offices:

 89 Hangar Way, Watsonville CA 95076 - USA

Toll Free USA & Canada:

 (800) 447-1001 

International:

 +1(831) 763-7000

Customer Support:

 [email protected]

Copyright © 2022 Orion Telescopes & Binoculars. All Rights Reserved. No part of this product instruction or any of its contents 

may be reproduced, copied, modified or adapted, without the prior written consent of Orion Telescopes & Binoculars.

A N   E M P L O Y E E - O W N E D   C O M P A N Y

Summary of Contents for AstroView 55028

Page 1: ...anada 800 447 1001 International 1 831 763 7000 Customer Support support telescope com Copyright 2022 Orion Telescopes Binoculars All Rights Reserved No part of this product instruction or any of its...

Page 2: ...epiece 1 25 1 M Dust cover 1 N MoonMap 260 1 O Allen wrench 1 Congratulations on your purchase of an Orion telescope Your new AstroView 102mm Equatorial Refractor Tele scope is a terrific instrument d...

Page 3: ...e oriented so that the sight tube is facing the front of the telescope as in Figure 8 A star diagonal is used to divert the light at a right angle from the light path of the telescope This allows you...

Page 4: ...l balance the telescope with respect to the R A axis then the Dec axis 1 While keeping one hand on the telescope optical tube sold separately loosen the R A lock knob see Figure 13A Make sure the Dec...

Page 5: ...ig Dipper Figure 14 The two stars at the end of the bowl of the Big Dipper point approximately to Polaris Observers in the Southern Hemisphere aren t so fortunate to have a bright star so near the sou...

Page 6: ...e mount nor should you move the tripod Doing so will ruin the polar alignment The telescope should henceforth be moved only about its R A and Dec axes Using the R A and Dec Slow Motion Control Cables...

Page 7: ...tationary in the field of view without any manual adjust ment of the R A slow motion control cable Understanding the Setting Circles The two setting circles on an equatorial mount enable you to locate...

Page 8: ...freely Rotate the setting circle until the pointer indicates the R A coordinate listed in the star atlas for the object Retighten the thumb screw Calibrating the Setting Circles Using a star atlas or...

Page 9: ...rols to center the object in the finder scope and it should appear in the telescope s field of view The R A setting circle must be re calibrated every time you wish to locate a new object Do so by cal...

Page 10: ...sparency Atmospheric conditions vary significantly from night to night Seeing refers to the steadiness of the Earth s atmosphere at a given time In conditions of poor seeing atmospheric turbu lence ca...

Page 11: ...Keep going until you see your target object come into focus Note that when you change eyepieces you may have to adjust the focus a bit to get a sharp image with the newly inserted eyepiece If desired...

Page 12: ...epieces uncovered overnight to allow the condensation to evaporate Cleaning the Telescope s Optics Any quality optical lens cleaning tissue and optical lens cleaning fluid specifically designed for co...

Page 13: ...Nowadays many mobile astronomy apps feature customizable star maps that you can access on your smartphone or tablet while you re at the telescope VIII Specifications Lens aperture 102mm 4 0 Lens assem...

Page 14: ...dled or modified nor does it apply to normal wear and tear This warranty gives you specific legal rights It is not intended to remove or restrict your other legal rights under applicable local consume...

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